I'm a 54 y.o. male, and have been an active runner since '94. I've completed 12 marathons (or maybe 13) and many shorter races.
Due to a back problem (herniated discs) my doctor has me biking and NOT running. It's not an easy switch mentally because I love running and I've been very competive in my age division.
Anyway, the healing process is going slow so it appears I'll be biking for a while. I've made my mind up to enjoy it so I need to hang out with other bikers. After all, I started running only to lose weight in order to return to weightlifting and it became my sport of choice.
After this thread, I'll probably post in the over 50 section. I'm looking forward to meeting new friends and learning more ways to enjoy biking. Competition isn't in my thoughts just yet but it could be.
As of now, I'm on my son's old Roadmaster. I had a back problem and my doctor told me not to run for a while, but I can bike. If this becomes a habit, I'll upgrade my ride and make an attempt at becoming an official cyclist.
Back in '94, I started jogging just to lose weight and with the encouragement of my daughter (11 at the time) I ended up being a bonafide long distance runner. It's been my sport of choice ever since.
Now, with this back thing, a shift of focus may be in order. At this time I usually do 2-3 rides a week of 14 miles which takes between 57 minutes to 1:03. My Saturday long ride is up to 35 miles and it took 2:29. I'm really enjoying it